X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e39bbd6388a46a93cf74fe1562e2015060071c24..ae7de36436dc212a9537e15b06cf433f50594f63:/src/mc/mc_liveness.c

diff --git a/src/mc/mc_liveness.c b/src/mc/mc_liveness.c
index 1ad236eabb..e3bec582b9 100644
--- a/src/mc/mc_liveness.c
+++ b/src/mc/mc_liveness.c
@@ -5,759 +5,174 @@
 
 #include "mc_private.h"
 #include <unistd.h>
+#include <sys/wait.h>
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_liveness, mc,
                                 "Logging specific to algorithms for liveness properties verification");
 
 xbt_dynar_t reached_pairs;
-xbt_dynar_t reached_pairs_hash;
-xbt_dynar_t visited_pairs;
-xbt_dynar_t visited_pairs_hash;
 xbt_dynar_t successors;
 
-xbt_dynar_t hosts_table;
-
-
-/* fast implementation of djb2 algorithm */
-unsigned int hash_region(char *str, int str_len){
-
-  int c;
-  register unsigned int hash = 5381;
-
-  while (str_len--) {
-    c = *str++;
-    hash = ((hash << 5) + hash) + c;    /* hash * 33 + c */
-  }
-
-  return hash;
-
-}
-
-int data_program_region_compare(void *d1, void *d2, size_t size){
-  int distance = 0;
-  int i;
-  
-  for(i=0; i<size; i++){
-    if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
-      fprintf(stderr,"Different byte (offset=%d) (%p - %p) in data program region\n", i, (char *)d1 + i, (char *)d2 + i);
-      distance++;
-    }
-  }
-  
-  fprintf(stderr, "Hamming distance between data program regions : %d\n", distance);
-
-  return distance;
-}
-
-int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
-  int distance = 0;
-  int i;
-  
-  for(i=0; i<size; i++){
-    if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
-      fprintf(stderr, "Different byte (offset=%d) (%p - %p) in data libsimgrid region\n", i, (char *)d1 + i, (char *)d2 + i);
-      distance++;
-    }
-  }
-  
-  fprintf(stderr, "Hamming distance between data libsimgrid regions : %d\n", distance);
+int create_dump(int pair)
+{
+   // Try to enable core dumps
+  struct rlimit core_limit;
+  core_limit.rlim_cur = RLIM_INFINITY;
+  core_limit.rlim_max = RLIM_INFINITY;
   
-  return distance;
-}
-
-int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2, void* s_heap, void* r_heap){
-
+  if(setrlimit(RLIMIT_CORE, &core_limit) < 0)
+    fprintf(stderr, "setrlimit: %s\nWarning: core dumps may be truncated or non-existant\n", strerror(errno));
   
-  if(s1->num_reg != s2->num_reg){
-    XBT_INFO("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
-    return 1;
-  }
-
-  int i;
-  int errors = 0;
-
-  for(i=0 ; i< s1->num_reg ; i++){
-
-    if(s1->regions[i]->type != s2->regions[i]->type){
-	XBT_INFO("Different type of region");
-	errors++;
-    }
-
-    switch(s1->regions[i]->type){
-      case 0:
-      if(s1->regions[i]->size != s2->regions[i]->size){
-	XBT_INFO("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
-	errors++;
-      }
-      if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
-	XBT_INFO("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
-	errors++;
-      }
-      if(mmalloc_compare_heap(s1->regions[i]->data, s2->regions[i]->data, s_heap, r_heap)){
-	XBT_INFO("Different heap (mmalloc_compare)");
-	errors++; 
-      }
-      break;
-    case 1 :
-      if(s1->regions[i]->size != s2->regions[i]->size){
-	XBT_INFO("Different size of libsimgrid (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
-	errors++;
-      }
-      if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
-	XBT_INFO("Different start addr of libsimgrid (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
-	errors++;
-      }
-      if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
-	XBT_INFO("Different memcmp for data in libsimgrid");
-	errors++;
-      }
-      break;
-    case 2 :
-      if(s1->regions[i]->size != s2->regions[i]->size){
-	XBT_INFO("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
-	errors++;
-      }
-      if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
-	XBT_INFO("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
-	errors++;
-      }
-      if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
-	XBT_INFO("Different memcmp for data in program");
-	errors++;
-      }
-      break;
-    default:
-      break;
+  int status;
+  switch(fork()){
+  case 0:
+    // We are the child process -- run the actual program
+    abort();
+    break;
+    
+  case -1:
+    // An error occurred, shouldn't happen
+    perror("fork");
+    return -1;
+    
+  default:
+    // We are the parent process -- wait for the child process to exit
+    if(wait(&status) < 0)
+      perror("wait");
+    if(WIFSIGNALED(status) && WCOREDUMP(status)){
+      char *core_name = malloc(20);
+      sprintf(core_name,"core_%d", pair); 
+      rename("core", core_name);
+      free(core_name);
     }
   }
 
-  return (errors > 0);
-  
+  return 0;
 }
 
 int reached(xbt_state_t st){
 
+  raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
 
-  if(xbt_dynar_is_empty(reached_pairs)){
-
-    return 0;
-
-  }else{
-
-    MC_SET_RAW_MEM;
-
-    mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-    MC_take_snapshot_liveness(sn);    
-    
-    xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL);
-    int res;
-    int_f_void_t f;
-
-    /* Get values of propositional symbols */
-    unsigned int cursor = 0;
-    xbt_propositional_symbol_t ps = NULL;
-    xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-      f = (int_f_void_t)ps->function;
-      res = (*f)();
-      xbt_dynar_push_as(prop_ato, int, res);
-    }
-
-    cursor = 0;
-    mc_pair_reached_t pair_test = NULL;
-
-    //xbt_dict_t current_rdv_points = SIMIX_get_rdv_points();
-     
-    xbt_dynar_foreach(reached_pairs, cursor, pair_test){
-      XBT_INFO("Pair reached #%d", pair_test->nb);
-      if(automaton_state_compare(pair_test->automaton_state, st) == 0){
-	if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){
-	  //XBT_INFO("Rdv points size %d - %d", xbt_dict_length(pair_test->rdv_points), xbt_dict_length(current_rdv_points));
-	  //if(xbt_dict_length(pair_test->rdv_points) == xbt_dict_length(current_rdv_points)){
-	  //if(rdv_points_compare(pair_test->rdv_points, current_rdv_points) == 0){
-	  if(snapshot_compare(pair_test->system_state, sn, std_heap, raw_heap) == 0){
-	   
-	    MC_free_snapshot(sn);
-	    xbt_dynar_reset(prop_ato);
-	    xbt_free(prop_ato);
-	    MC_UNSET_RAW_MEM;
-	    return 1;
-	  }
-	  /* }
-	  }else{
-	    XBT_INFO("Different size of rdv points (%d - %d)",xbt_dict_length(pair_test->rdv_points), xbt_dict_length(current_rdv_points) );
-	    }*/
-	}else{
-	  XBT_INFO("Different values of propositional symbols");
-	}
-      }else{
-	XBT_INFO("Different automaton state");
-      }
-    }
-
-    MC_free_snapshot(sn);
-    xbt_dynar_reset(prop_ato);
-    xbt_free(prop_ato);
-    MC_UNSET_RAW_MEM;
-    return 0;
-    
-  }
-}
-
-int rdv_points_compare(xbt_dict_t d1, xbt_dict_t d2){ /* d1 = pair_test, d2 = current_pair */ 
-  
-   xbt_dict_cursor_t cursor_dict = NULL;
-   char *key;
-   char *data;
-   smx_rdv_t rdv1, rdv2;
-   xbt_fifo_item_t item1, item2;
-   smx_action_t action1, action2;
-   xbt_fifo_item_t item_req1, item_req2;
-   smx_simcall_t req1, req2;
-   int i=0;
-   int j=0;
-
-   xbt_dict_foreach(d1, cursor_dict, key, data){
-     rdv1 = (smx_rdv_t)data;
-     rdv2 = xbt_dict_get_or_null(d2, rdv1->name);
-     if(rdv2 == NULL){
-       XBT_INFO("Rdv point unknown");
-       return 1;
-     }else{
-       if(xbt_fifo_size(rdv1->comm_fifo) != xbt_fifo_size(rdv2->comm_fifo)){
-	 XBT_INFO("Different total of actions in mailbox \"%s\" (%d - %d)", rdv1->name, xbt_fifo_size(rdv1->comm_fifo),xbt_fifo_size(rdv2->comm_fifo) );
-	 return 1;
-       }else{
-	 
-	 XBT_INFO("Total of actions in mailbox \"%s\" : %d", rdv1->name, xbt_fifo_size(rdv1->comm_fifo)); 
-	 
-	 item1 = xbt_fifo_get_first_item(rdv1->comm_fifo);	
-	 item2 = xbt_fifo_get_first_item(rdv2->comm_fifo);
-
-	 while(i<xbt_fifo_size(rdv1->comm_fifo)){
-	   action1 = (smx_action_t) xbt_fifo_get_item_content(item1);
-	   action2 = (smx_action_t) xbt_fifo_get_item_content(item2);
-
-	   if(action1->type != action2->type){
-	     XBT_INFO("Different type of action");
-	     return 1;
-	   }
-
-	   if(action1->state != action2->state){
-	     XBT_INFO("Different state of action");
-	     return 1;
-	   }
-
-	   if(xbt_fifo_size(action1->simcalls) != xbt_fifo_size(action2->simcalls)){
-	     XBT_INFO("Different size of simcall list (%d - %d", xbt_fifo_size(action1->simcalls), xbt_fifo_size(action2->simcalls));
-	     return 1;
-	   }else{
-
-	     item_req1 = xbt_fifo_get_first_item(action1->simcalls);	
-	     item_req2 = xbt_fifo_get_first_item(action2->simcalls);
-
-	     while(j<xbt_fifo_size(action1->simcalls)){
-
-	       req1 = (smx_simcall_t) xbt_fifo_get_item_content(item_req1);
-	       req2 = (smx_simcall_t) xbt_fifo_get_item_content(item_req2);
-	       
-	       if(req1->call != req2->call){
-		 XBT_INFO("Different simcall call in simcalls of action (%d - %d)", (int)req1->call, (int)req2->call);
-		 return 1;
-	       }
-	       if(req1->issuer->pid != req2->issuer->pid){
-		 XBT_INFO("Different simcall issuer in simcalls of action (%lu- %lu)", req1->issuer->pid, req2->issuer->pid);
-		 return 1;
-	       }
-
-	       item_req1 = xbt_fifo_get_next_item(item_req1);	
-	       item_req2 = xbt_fifo_get_next_item(item_req2);
-	       j++;
-	       
-	     }
-	   }
-
-	   switch(action1->type){
-	   case 0: /* execution */
-	   case 1: /* parallel execution */
-	     if(strcmp(action1->execution.host->name, action2->execution.host->name) != 0)
-	       return 1;
-	     break;
-	   case 2: /* comm */
-	     if(action1->comm.type != action2->comm.type)
-	       return 1;
-	     //XBT_INFO("Type of comm : %d", action1->comm.type);
-	     
-	     switch(action1->comm.type){
-	     case 0: /* SEND */
-	       if(action1->comm.src_proc->pid != action2->comm.src_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0)
-		 return 1;
-	       break;
-	     case 1: /* RECEIVE */
-	       if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0)
-		 return 1;
-	       break;
-	     case 2: /* READY */
-	       if(action1->comm.src_proc->pid != action2->comm.src_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0)
-		 return 1;
-	       if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0)
-		 return 1;
-	       break;
-	     case 3: /* DONE */
-	       if(action1->comm.src_proc->pid != action2->comm.src_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0)
-		 return 1;
-	       if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid)
-		 return 1;
-	       if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0)
-		 return 1;
-	       break;
-	       
-	     } /* end of switch on type of comm */
-	     
-	     if(action1->comm.refcount != action2->comm.refcount)
-	       return 1;
-	     if(action1->comm.detached != action2->comm.detached)
-	       return 1;
-	     if(action1->comm.rate != action2->comm.rate)
-	       return 1;
-	     if(action1->comm.task_size != action2->comm.task_size)
-	       return 1;
-	     if(action1->comm.src_buff != action2->comm.src_buff)
-	       return 1;
-	     if(action1->comm.dst_buff != action2->comm.dst_buff)
-	       return 1;
-	     if(action1->comm.src_data != action2->comm.src_data)
-	       return 1;
-	     if(action1->comm.dst_data != action2->comm.dst_data)
-	       return 1;
-	     
-	     break;
-	   case 3: /* sleep */
-	     if(strcmp(action1->sleep.host->name, action2->sleep.host->name) != 0)
-	       return 1;
-	     break;
-	   case 4: /* synchro */
-	     
-	     break;
-	   default:
-	     break;
-	   }
-
-	   item1 = xbt_fifo_get_next_item(item1);	
-	   item2 = xbt_fifo_get_next_item(item2);
-	   i++;
-	 }
-       }
-     }
-   }
-
-   return 0;
-   
-}
-
-void set_pair_reached(xbt_state_t st){
-
- 
   MC_SET_RAW_MEM;
-  
-  mc_pair_reached_t pair = NULL;
-  pair = xbt_new0(s_mc_pair_reached_t, 1);
-  pair->nb = xbt_dynar_length(reached_pairs) + 1;
-  pair->automaton_state = st;
-  pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
-  pair->system_state = xbt_new0(s_mc_snapshot_t, 1);
-  //pair->rdv_points = xbt_dict_new();  
-  MC_take_snapshot_liveness(pair->system_state);
 
+  mc_pair_reached_t new_pair = NULL;
+  new_pair = xbt_new0(s_mc_pair_reached_t, 1);
+  new_pair->nb = xbt_dynar_length(reached_pairs) + 1;
+  new_pair->automaton_state = st;
+  new_pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
+  new_pair->system_state = xbt_new0(s_mc_snapshot_t, 1); 
+  MC_take_snapshot_liveness(new_pair->system_state);  
+  
   /* Get values of propositional symbols */
-  unsigned int cursor = 0;
-  xbt_propositional_symbol_t ps = NULL;
   int res;
   int_f_void_t f;
-
-  xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
+  unsigned int cursor = 0;
+  xbt_propositional_symbol_t ps = NULL;
+  xbt_dynar_foreach(_mc_property_automaton->propositional_symbols, cursor, ps){
     f = (int_f_void_t)ps->function;
     res = (*f)();
-    xbt_dynar_push_as(pair->prop_ato, int, res);
+    xbt_dynar_push_as(new_pair->prop_ato, int, res);
   }
-
-  /*xbt_dict_t rdv_points = SIMIX_get_rdv_points();
-
-  xbt_dict_cursor_t cursor_dict = NULL;
-  char *key;
-  char *data;
-  xbt_fifo_item_t item;
-  smx_action_t action;
-
-  xbt_dict_foreach(rdv_points, cursor_dict, key, data){
-    smx_rdv_t new_rdv = xbt_new0(s_smx_rvpoint_t, 1);
-    new_rdv->name = strdup(((smx_rdv_t)data)->name);
-    new_rdv->comm_fifo = xbt_fifo_new();
-    xbt_fifo_foreach(((smx_rdv_t)data)->comm_fifo, item, action, smx_action_t) {
-      smx_action_t a = xbt_new0(s_smx_action_t, 1);
-      memcpy(a, action, sizeof(s_smx_action_t));
-      xbt_fifo_push(new_rdv->comm_fifo, a);
-      XBT_INFO("New action (type = %d, state = %d) in mailbox \"%s\"", action->type, action->state, key);
-      if(action->type==2)
-	XBT_INFO("Type of communication : %d, Ref count = %d", action->comm.type, action->comm.refcount);
-    }
-    //new_rdv->comm_fifo = xbt_fifo_copy(((smx_rdv_t)data)->comm_fifo);
-    xbt_dict_set(pair->rdv_points, new_rdv->name, new_rdv, NULL);
-    }*/
- 
-  xbt_dynar_push(reached_pairs, &pair); 
-
+  
   MC_UNSET_RAW_MEM;
   
-}
-
-
-int reached_hash(xbt_state_t st){
-
-
-  if(xbt_dynar_is_empty(reached_pairs_hash)){
-
-    return 0;
-
-  }else{
+  if(xbt_dynar_is_empty(reached_pairs) || !compare){
 
     MC_SET_RAW_MEM;
-
-    mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-    MC_take_snapshot_liveness(sn);
-
-    int j;
-    unsigned int hash_regions[sn->num_reg];
-    for(j=0; j<sn->num_reg; j++){
-      hash_regions[j] = hash_region(sn->regions[j]->data, sn->regions[j]->size);
-    }
-
-
-    /* Get values of propositional symbols */
-    xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL);
-    unsigned int cursor = 0;
-    xbt_propositional_symbol_t ps = NULL;
-    int res;
-    int_f_void_t f;
-
-    xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-      f = (int_f_void_t)ps->function;
-      res = (*f)();
-      xbt_dynar_push_as(prop_ato, int, res);
-    }
-
-    mc_pair_reached_hash_t pair_test = NULL;
-
-    int region_diff = 0;
-
-    cursor = 0;
-
-    xbt_dynar_foreach(reached_pairs_hash, cursor, pair_test){
-
-      if(automaton_state_compare(pair_test->automaton_state, st) == 0){
-	if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){
-	  for(j=0 ; j< sn->num_reg ; j++){
-	    if(hash_regions[j] != pair_test->hash_regions[j]){
-	      region_diff++;
-	    }
-	  }
-	  if(region_diff == 0){
-	    MC_free_snapshot(sn);
-	    xbt_dynar_reset(prop_ato);
-	    xbt_free(prop_ato);
-	    MC_UNSET_RAW_MEM;
-	    return 1;
-	  }else{
-	    XBT_INFO("Different snapshot");
-	  }
-	}else{
-	  XBT_INFO("Different values of propositional symbols");
-	}
-      }else{
-	XBT_INFO("Different automaton state");
-      }
-
-      region_diff = 0;
-    }
-    
-    MC_free_snapshot(sn);
-    xbt_dynar_reset(prop_ato);
-    xbt_free(prop_ato);
+    /* New pair reached */
+    xbt_dynar_push(reached_pairs, &new_pair); 
     MC_UNSET_RAW_MEM;
-    return 0;
     
-  }
-}
-
-void set_pair_reached_hash(xbt_state_t st){
- 
-  MC_SET_RAW_MEM;
-
-  mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-  MC_take_snapshot_liveness(sn);
- 
-  mc_pair_reached_hash_t pair = NULL;
-  pair = xbt_new0(s_mc_pair_reached_hash_t, 1);
-  pair->automaton_state = st;
-  pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
-  pair->hash_regions = malloc(sizeof(unsigned int) * sn->num_reg);
-  
-  int i;
-
-  for(i=0 ; i< sn->num_reg ; i++){
-    pair->hash_regions[i] = hash_region(sn->regions[i]->data, sn->regions[i]->size);
-  }
-  
-  /* Get values of propositional symbols */
-  unsigned int cursor = 0;
-  xbt_propositional_symbol_t ps = NULL;
-  int res;
-  int_f_void_t f;
-
-  xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-    f = (int_f_void_t)ps->function;
-    res = (*f)();
-    xbt_dynar_push_as(pair->prop_ato, int, res);
-  }
-  
-  xbt_dynar_push(reached_pairs_hash, &pair);
-
-  MC_free_snapshot(sn);
-  
-  MC_UNSET_RAW_MEM;
-    
-}
-
-
-int visited(xbt_state_t st, int sc){
-
-
-  if(xbt_dynar_is_empty(visited_pairs)){
+    create_dump(xbt_dynar_length(reached_pairs));
 
     return 0;
 
   }else{
 
     MC_SET_RAW_MEM;
-
-    mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-    MC_take_snapshot_liveness(sn);
-
-    xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL);
-
-    /* Get values of propositional symbols */
-    unsigned int cursor = 0;
-    xbt_propositional_symbol_t ps = NULL;
-    int res;
-    int_f_void_t f;
-
-    xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-      f = (int_f_void_t)ps->function;
-      res = (*f)();
-      xbt_dynar_push_as(prop_ato, int, res);
-    }
-
+    
     cursor = 0;
-    mc_pair_visited_t pair_test = NULL;
-
-    xbt_dynar_foreach(visited_pairs, cursor, pair_test){
-      if(pair_test->search_cycle == sc) {
-	if(automaton_state_compare(pair_test->automaton_state, st) == 0){
-	  if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){
-	    if(snapshot_compare(pair_test->system_state, sn, std_heap, raw_heap) == 0){
-	    
-	      MC_free_snapshot(sn);
-	      xbt_dynar_reset(prop_ato);
-	      xbt_free(prop_ato);
-	      MC_UNSET_RAW_MEM;
-		
-	      return 1;
-	
-	    }else{
-	      XBT_INFO("Different snapshot");
-	    }
-	  }else{
-	    XBT_INFO("Different values of propositional symbols"); 
-	  }
-	}else{
-	  XBT_INFO("Different automaton state");
-	}
+    mc_pair_reached_t pair_test = NULL;
+     
+    xbt_dynar_foreach(reached_pairs, cursor, pair_test){
+      XBT_INFO("Pair reached #%d", pair_test->nb);
+      if(automaton_state_compare(pair_test->automaton_state, st) == 0){
+        if(propositional_symbols_compare_value(pair_test->prop_ato, new_pair->prop_ato) == 0){
+          if(snapshot_compare(new_pair->system_state, pair_test->system_state) == 0){
+            
+            if(raw_mem_set)
+              MC_SET_RAW_MEM;
+            else
+              MC_UNSET_RAW_MEM;
+            
+            return 1;
+          }       
+        }else{
+          XBT_INFO("Different values of propositional symbols");
+        }
       }else{
-	XBT_INFO("Different value of search_cycle");
+        XBT_INFO("Different automaton state");
       }
     }
 
+    create_dump(xbt_dynar_length(reached_pairs));
 
-    MC_free_snapshot(sn);
-    xbt_dynar_reset(prop_ato);
-    xbt_free(prop_ato);
-    MC_UNSET_RAW_MEM;
-    return 0;
-    
-  }
-}
-
-
-int visited_hash(xbt_state_t st, int sc){
-
-
-  if(xbt_dynar_is_empty(visited_pairs_hash)){
-
-    return 0;
-
-  }else{
-
-    MC_SET_RAW_MEM;
-
-    mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-    MC_take_snapshot_liveness(sn);
-
-    int j;
-    unsigned int hash_regions[sn->num_reg];
-    for(j=0; j<sn->num_reg; j++){
-      hash_regions[j] = hash_region(sn->regions[j]->data, sn->regions[j]->size);
-    }
-
+    /* New pair reached */
+    xbt_dynar_push(reached_pairs, &new_pair); 
     
-    /* Get values of propositional symbols */
-    xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL);
-    unsigned int cursor = 0;
-    xbt_propositional_symbol_t ps = NULL;
-    int res;
-    int_f_void_t f;
-
-    xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-      f = (int_f_void_t)ps->function;
-      res = (*f)();
-      xbt_dynar_push_as(prop_ato, int, res);
-    }
-
-    mc_pair_visited_hash_t pair_test = NULL;
+    MC_UNSET_RAW_MEM;
 
-    int region_diff = 0;
-    cursor = 0;
+    if(raw_mem_set)
+      MC_SET_RAW_MEM;
+    else
+      MC_UNSET_RAW_MEM;
 
-    xbt_dynar_foreach(visited_pairs_hash, cursor, pair_test){
-  
-      if(pair_test->search_cycle == sc) {
-	if(automaton_state_compare(pair_test->automaton_state, st) == 0){
-	  if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){
-	    for(j=0 ; j< sn->num_reg ; j++){
-	      if(hash_regions[j] != pair_test->hash_regions[j]){
-		region_diff++;
-	      }
-	    }
-	    if(region_diff == 0){
-	      MC_free_snapshot(sn);
-	      xbt_dynar_reset(prop_ato);
-	      xbt_free(prop_ato);
-	      MC_UNSET_RAW_MEM;
-	      return 1;
-	    }else{
-	      //XBT_INFO("Different snapshot");
-	    }
-	  }else{
-	    //XBT_INFO("Different values of propositional symbols"); 
-	  }
-	}else{
-	  //XBT_INFO("Different automaton state");
-	}
-      }else{
-	//XBT_INFO("Different value of search_cycle");
-      }
-      
-      region_diff = 0;
-    }
+    compare = 0;
     
-    MC_free_snapshot(sn);
-    xbt_dynar_reset(prop_ato);
-    xbt_free(prop_ato);
-    MC_UNSET_RAW_MEM;
     return 0;
     
   }
 }
 
-void set_pair_visited_hash(xbt_state_t st, int sc){
+
+void set_pair_reached(xbt_state_t st){
+
+  raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
  
   MC_SET_RAW_MEM;
 
-  mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
-  MC_take_snapshot_liveness(sn);
- 
-  mc_pair_visited_hash_t pair = NULL;
-  pair = xbt_new0(s_mc_pair_visited_hash_t, 1);
+  mc_pair_reached_t pair = NULL;
+  pair = xbt_new0(s_mc_pair_reached_t, 1);
+  pair->nb = xbt_dynar_length(reached_pairs) + 1;
   pair->automaton_state = st;
   pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
-  pair->search_cycle = sc;
-  pair->hash_regions = malloc(sizeof(unsigned int) * sn->num_reg);
-  
-  int i;
+  pair->system_state = xbt_new0(s_mc_snapshot_t, 1); 
+  MC_take_snapshot_liveness(pair->system_state);
 
-  for(i=0 ; i< sn->num_reg ; i++){
-    pair->hash_regions[i] = hash_region(sn->regions[i]->data, sn->regions[i]->size);
-  }
-  
   /* Get values of propositional symbols */
   unsigned int cursor = 0;
   xbt_propositional_symbol_t ps = NULL;
   int res;
   int_f_void_t f;
 
-  xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
+  xbt_dynar_foreach(_mc_property_automaton->propositional_symbols, cursor, ps){
     f = (int_f_void_t)ps->function;
     res = (*f)();
     xbt_dynar_push_as(pair->prop_ato, int, res);
   }
-  
-  xbt_dynar_push(visited_pairs_hash, &pair);
 
-  MC_free_snapshot(sn);
+  xbt_dynar_push(reached_pairs, &pair); 
   
   MC_UNSET_RAW_MEM;
-    
-}
-
-void set_pair_visited(xbt_state_t st, int sc){
-
- 
-  MC_SET_RAW_MEM;
- 
-  mc_pair_visited_t pair = NULL;
-  pair = xbt_new0(s_mc_pair_visited_t, 1);
-  pair->automaton_state = st;
-  pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
-  pair->search_cycle = sc;
-  pair->system_state = xbt_new0(s_mc_snapshot_t, 1);
-  MC_take_snapshot_liveness(pair->system_state);
 
+  create_dump(xbt_dynar_length(reached_pairs));
 
-  /* Get values of propositional symbols */
-  unsigned int cursor = 0;
-  xbt_propositional_symbol_t ps = NULL;
-  int res;
-  int_f_void_t f;
-
-  xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){
-    f = (int_f_void_t)ps->function;
-    res = (*f)();
-    xbt_dynar_push_as(pair->prop_ato, int, res);
-  }
-  
-  xbt_dynar_push(visited_pairs, &pair);
-  
-  MC_UNSET_RAW_MEM;
-  
-  
+  if(raw_mem_set)
+    MC_SET_RAW_MEM;
+  else
+    MC_UNSET_RAW_MEM;
+    
 }
 
 void MC_pair_delete(mc_pair_t pair){
@@ -789,10 +204,10 @@ int MC_automaton_evaluate_label(xbt_exp_label_t l){
     unsigned int cursor = 0;
     xbt_propositional_symbol_t p = NULL;
     int_f_void_t f;
-    xbt_dynar_foreach(automaton->propositional_symbols, cursor, p){
+    xbt_dynar_foreach(_mc_property_automaton->propositional_symbols, cursor, p){
       if(strcmp(p->pred, l->u.predicat) == 0){
-	f = (int_f_void_t)p->function;
-	return (*f)();
+        f = (int_f_void_t)p->function;
+        return (*f)();
       }
     }
     return -1;
@@ -826,6 +241,8 @@ mc_pair_stateless_t new_pair_stateless(mc_state_t sg, xbt_state_t st, int r){
 
 void MC_ddfs_init(void){
 
+  raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
   XBT_INFO("**************************************************");
   XBT_INFO("Double-DFS init");
   XBT_INFO("**************************************************");
@@ -847,9 +264,6 @@ void MC_ddfs_init(void){
   }
 
   reached_pairs = xbt_dynar_new(sizeof(mc_pair_reached_t), NULL);
-  //reached_pairs_hash = xbt_dynar_new(sizeof(mc_pair_reached_hash_t), NULL);
-  //visited_pairs = xbt_dynar_new(sizeof(mc_pair_visited_t), NULL);
-  visited_pairs_hash = xbt_dynar_new(sizeof(mc_pair_visited_hash_t), NULL);
   successors = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL);
 
   /* Save the initial state */
@@ -861,7 +275,7 @@ void MC_ddfs_init(void){
   unsigned int cursor = 0;
   xbt_state_t state;
 
-  xbt_dynar_foreach(automaton->states, cursor, state){
+  xbt_dynar_foreach(_mc_property_automaton->states, cursor, state){
     if(state->type == -1){
       
       MC_SET_RAW_MEM;
@@ -870,8 +284,8 @@ void MC_ddfs_init(void){
       MC_UNSET_RAW_MEM;
       
       if(cursor != 0){
-	MC_restore_snapshot(initial_snapshot_liveness);
-	MC_UNSET_RAW_MEM;
+        MC_restore_snapshot(initial_snapshot_liveness);
+        MC_UNSET_RAW_MEM;
       }
 
       MC_ddfs(0);
@@ -879,30 +293,37 @@ void MC_ddfs_init(void){
     }else{
       if(state->type == 2){
       
-	MC_SET_RAW_MEM;
-	mc_initial_pair = new_pair_stateless(initial_graph_state, state, MC_state_interleave_size(initial_graph_state));
-	xbt_fifo_unshift(mc_stack_liveness, mc_initial_pair);
-	MC_UNSET_RAW_MEM;
-
-	set_pair_reached(state);
-	//set_pair_reached_hash(state);
-
-	if(cursor != 0){
-	  MC_restore_snapshot(initial_snapshot_liveness);
-	  MC_UNSET_RAW_MEM;
-	}
-	
-	MC_ddfs(1);
-	
+        MC_SET_RAW_MEM;
+        mc_initial_pair = new_pair_stateless(initial_graph_state, state, MC_state_interleave_size(initial_graph_state));
+        xbt_fifo_unshift(mc_stack_liveness, mc_initial_pair);
+        MC_UNSET_RAW_MEM;
+
+        set_pair_reached(state);
+
+        if(cursor != 0){
+          MC_restore_snapshot(initial_snapshot_liveness);
+          MC_UNSET_RAW_MEM;
+        }
+  
+        MC_ddfs(1);
+  
       }
     }
-  } 
+  }
+
+  if(raw_mem_set)
+    MC_SET_RAW_MEM;
+  else
+    MC_UNSET_RAW_MEM;
+  
 
 }
 
 
 void MC_ddfs(int search_cycle){
 
+  raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
   smx_process_t process;
   mc_pair_stateless_t current_pair = NULL;
 
@@ -914,11 +335,10 @@ void MC_ddfs(int search_cycle){
   current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness));
 
   /* Update current state in buchi automaton */
-  automaton->current_state = current_pair->automaton_state;
+  _mc_property_automaton->current_state = current_pair->automaton_state;
 
  
   XBT_INFO("********************* ( Depth = %d, search_cycle = %d )", xbt_fifo_size(mc_stack_liveness), search_cycle);
-  XBT_INFO("Pair : graph=%p, automaton=%p(%s), %u interleave", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id, MC_state_interleave_size(current_pair->graph_state));
  
   mc_stats_pair->visited_pairs++;
 
@@ -938,181 +358,149 @@ void MC_ddfs(int search_cycle){
   
   if(xbt_fifo_size(mc_stack_liveness) < MAX_DEPTH_LIVENESS){
 
-    //set_pair_visited(current_pair->automaton_state, search_cycle);
-    set_pair_visited_hash(current_pair->automaton_state, search_cycle);
-
-    //XBT_INFO("Visited pairs : %lu", xbt_dynar_length(visited_pairs));
-    XBT_INFO("Visited pairs : %lu", xbt_dynar_length(visited_pairs_hash));
-
     if(current_pair->requests > 0){
 
       while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
    
-	/* Debug information */
+        /* Debug information */
+       
+        req_str = MC_request_to_string(req, value);
+        XBT_INFO("Execute: %s", req_str);
+        xbt_free(req_str);
 
-	req_str = MC_request_to_string(req, value);
-	XBT_INFO("Execute: %s", req_str);
-	xbt_free(req_str);
+        MC_state_set_executed_request(current_pair->graph_state, req, value);   
 
-	MC_state_set_executed_request(current_pair->graph_state, req, value);   
+        /* Answer the request */
+        SIMIX_simcall_pre(req, value);
 
-	/* Answer the request */
-	SIMIX_simcall_pre(req, value);
+        /* Wait for requests (schedules processes) */
+        MC_wait_for_requests();
 
-	/* Wait for requests (schedules processes) */
-	MC_wait_for_requests();
+        MC_SET_RAW_MEM;
 
+        /* Create the new expanded graph_state */
+        next_graph_state = MC_state_pair_new();
 
-	MC_SET_RAW_MEM;
+        /* Get enabled process and insert it in the interleave set of the next graph_state */
+        xbt_swag_foreach(process, simix_global->process_list){
+          if(MC_process_is_enabled(process)){
+            MC_state_interleave_process(next_graph_state, process);
+          }
+        }
 
-	/* Create the new expanded graph_state */
-	next_graph_state = MC_state_pair_new();
+        xbt_dynar_reset(successors);
 
-	/* Get enabled process and insert it in the interleave set of the next graph_state */
-	xbt_swag_foreach(process, simix_global->process_list){
-	  if(MC_process_is_enabled(process)){
-	    MC_state_interleave_process(next_graph_state, process);
-	  }
-	}
+        MC_UNSET_RAW_MEM;
 
-	xbt_dynar_reset(successors);
 
-	MC_UNSET_RAW_MEM;
+        cursor= 0;
+        xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
 
+          res = MC_automaton_evaluate_label(transition_succ->label);
 
-	cursor= 0;
-	xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
+          if(res == 1){ // enabled transition in automaton
+            MC_SET_RAW_MEM;
+            next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
+            xbt_dynar_push(successors, &next_pair);
+            MC_UNSET_RAW_MEM;
+          }
 
-	  res = MC_automaton_evaluate_label(transition_succ->label);
+        }
 
-	  if(res == 1){ // enabled transition in automaton
-	    MC_SET_RAW_MEM;
-	    next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
-	    xbt_dynar_push(successors, &next_pair);
-	    MC_UNSET_RAW_MEM;
-	  }
+        cursor = 0;
+   
+        xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
+      
+          res = MC_automaton_evaluate_label(transition_succ->label);
+  
+          if(res == 2){ // true transition in automaton
+            MC_SET_RAW_MEM;
+            next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
+            xbt_dynar_push(successors, &next_pair);
+            MC_UNSET_RAW_MEM;
+          }
 
-	}
+        }
 
-	cursor = 0;
-   
-	xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
+        cursor = 0; 
+  
+        xbt_dynar_foreach(successors, cursor, pair_succ){
+
+          if(search_cycle == 1){
+
+            if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ 
+          
+              if(reached(pair_succ->automaton_state)){
+        
+                XBT_INFO("Next pair (depth = %d, %u interleave) already reached !", xbt_fifo_size(mc_stack_liveness) + 1, MC_state_interleave_size(pair_succ->graph_state));
+
+                XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+                XBT_INFO("|             ACCEPTANCE CYCLE            |");
+                XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+                XBT_INFO("Counter-example that violates formula :");
+                MC_show_stack_liveness(mc_stack_liveness);
+                MC_dump_stack_liveness(mc_stack_liveness);
+                MC_print_statistics_pairs(mc_stats_pair);
+                exit(0);
+
+              }else{
+
+                XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
+
+                XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
+
+                MC_SET_RAW_MEM;
+                xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+                MC_UNSET_RAW_MEM;
+    
+                MC_ddfs(search_cycle);
+
+              }
+
+            }else{
+
+              MC_SET_RAW_MEM;
+              xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+              MC_UNSET_RAW_MEM;
+              
+              MC_ddfs(search_cycle);
+               
+            }
+
+          }else{
+    
+            if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
+
+              XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
       
-	  res = MC_automaton_evaluate_label(transition_succ->label);
-	
-	  if(res == 2){ // true transition in automaton
-	    MC_SET_RAW_MEM;
-	    next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
-	    xbt_dynar_push(successors, &next_pair);
-	    MC_UNSET_RAW_MEM;
-	  }
-
-	}
-
-	cursor = 0; 
-	
-	xbt_dynar_foreach(successors, cursor, pair_succ){
-
-	  if(search_cycle == 1){
-
-	    if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ 
-		      
-	      if(reached(pair_succ->automaton_state)){
-		//if(reached_hash(pair_succ->automaton_state)){
-	      
-		XBT_INFO("Next pair (depth = %d, %u interleave) already reached !", xbt_fifo_size(mc_stack_liveness) + 1, MC_state_interleave_size(pair_succ->graph_state));
-
-		XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
-		XBT_INFO("|             ACCEPTANCE CYCLE            |");
-		XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
-		XBT_INFO("Counter-example that violates formula :");
-		MC_show_stack_liveness(mc_stack_liveness);
-		MC_dump_stack_liveness(mc_stack_liveness);
-		MC_print_statistics_pairs(mc_stats_pair);
-		exit(0);
-
-	      }else{
-
-		XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
-	      
-		set_pair_reached(pair_succ->automaton_state);
-		//set_pair_reached_hash(pair_succ->automaton_state);
-
-		XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
-		//XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash));
-
-		MC_SET_RAW_MEM;
-		xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-		MC_UNSET_RAW_MEM;
-		
-		MC_ddfs(search_cycle);
-
-	      }
-
-	    }else{
-
-	      if(!visited_hash(pair_succ->automaton_state, search_cycle)){
-		//if(!visited(pair_succ->automaton_state, search_cycle)){
-		
-		MC_SET_RAW_MEM;
-		xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-		MC_UNSET_RAW_MEM;
-		
-		MC_ddfs(search_cycle);
-		
-	      }else{
-
-		XBT_INFO("Next pair already visited ! ");
-
-	      }
-	      
-	    }
-
-	  }else{
-	  
-	    if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
-
-	      XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
-	    
-	      set_pair_reached(pair_succ->automaton_state); 
-	      //set_pair_reached_hash(pair_succ->automaton_state);
-
-	      search_cycle = 1;
-
-	      XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
-	      //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash));
-
-	    }
-
-	    if(!visited_hash(pair_succ->automaton_state, search_cycle)){
-	      //if(!visited(pair_succ->automaton_state, search_cycle)){
-	      
-	      MC_SET_RAW_MEM;
-	      xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-	      MC_UNSET_RAW_MEM;
-	      
-	      MC_ddfs(search_cycle);
-	      
-	    }else{
-
-	      XBT_INFO("Next pair already visited ! ");
-
-	    }
-
-	  }
-
-	 
-	  /* Restore system before checking others successors */
-	  if(cursor != (xbt_dynar_length(successors) - 1))
-	    MC_replay_liveness(mc_stack_liveness, 1);
-	
-	  
-	}
-
-	if(MC_state_interleave_size(current_pair->graph_state) > 0){
-	  XBT_INFO("Backtracking to depth %d", xbt_fifo_size(mc_stack_liveness));
-	  MC_replay_liveness(mc_stack_liveness, 0);
-	}
+              set_pair_reached(pair_succ->automaton_state); 
+
+              search_cycle = 1;
+
+              XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
+
+            }
+
+            MC_SET_RAW_MEM;
+            xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+            MC_UNSET_RAW_MEM;
+            
+            MC_ddfs(search_cycle);
+           
+          }
+
+   
+          /* Restore system before checking others successors */
+          if(cursor != (xbt_dynar_length(successors) - 1))
+            MC_replay_liveness(mc_stack_liveness, 1);
+  
+    
+        }
+
+        if(MC_state_interleave_size(current_pair->graph_state) > 0){
+          XBT_INFO("Backtracking to depth %d", xbt_fifo_size(mc_stack_liveness));
+          MC_replay_liveness(mc_stack_liveness, 0);
+        }
       }
 
  
@@ -1131,14 +519,14 @@ void MC_ddfs(int search_cycle){
       cursor= 0;
       xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
 
-	res = MC_automaton_evaluate_label(transition_succ->label);
+        res = MC_automaton_evaluate_label(transition_succ->label);
 
-	if(res == 1){ // enabled transition in automaton
-	  MC_SET_RAW_MEM;
-	  next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
-	  xbt_dynar_push(successors, &next_pair);
-	  MC_UNSET_RAW_MEM;
-	}
+        if(res == 1){ // enabled transition in automaton
+          MC_SET_RAW_MEM;
+          next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
+          xbt_dynar_push(successors, &next_pair);
+          MC_UNSET_RAW_MEM;
+        }
 
       }
 
@@ -1146,14 +534,14 @@ void MC_ddfs(int search_cycle){
    
       xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
       
-	res = MC_automaton_evaluate_label(transition_succ->label);
-	
-	if(res == 2){ // true transition in automaton
-	  MC_SET_RAW_MEM;
-	  next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
-	  xbt_dynar_push(successors, &next_pair);
-	  MC_UNSET_RAW_MEM;
-	}
+        res = MC_automaton_evaluate_label(transition_succ->label);
+  
+        if(res == 2){ // true transition in automaton
+          MC_SET_RAW_MEM;
+          next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state));
+          xbt_dynar_push(successors, &next_pair);
+          MC_UNSET_RAW_MEM;
+        }
 
       }
 
@@ -1161,97 +549,73 @@ void MC_ddfs(int search_cycle){
      
       xbt_dynar_foreach(successors, cursor, pair_succ){
 
-	if(search_cycle == 1){
-
-	  if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ 
-
-	    if(reached(pair_succ->automaton_state)){
-	      //if(reached_hash(pair_succ->automaton_state)){
-
-	      XBT_INFO("Next pair (depth = %d) already reached !", xbt_fifo_size(mc_stack_liveness) + 1);
-	      
-	      XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
-	      XBT_INFO("|             ACCEPTANCE CYCLE            |");
-	      XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
-	      XBT_INFO("Counter-example that violates formula :");
-	      MC_show_stack_liveness(mc_stack_liveness);
-	      MC_dump_stack_liveness(mc_stack_liveness);
-	      MC_print_statistics_pairs(mc_stats_pair);
-	      exit(0);
-
-	    }else{
+        if(search_cycle == 1){
 
-	      XBT_INFO("Next pair (depth = %d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
-	      
-	      set_pair_reached(pair_succ->automaton_state);
-	      //set_pair_reached_hash(pair_succ->automaton_state);
-		
-	      XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
-	      //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash));
+          if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ 
 
-	      MC_SET_RAW_MEM;
-	      xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-	      MC_UNSET_RAW_MEM;
-	      
-	      MC_ddfs(search_cycle);
-
-	    }
-
-	  }else{
-
-	    if(!visited_hash(pair_succ->automaton_state, search_cycle)){
-	      //if(!visited(pair_succ->automaton_state, search_cycle)){
-
-	      MC_SET_RAW_MEM;
-	      xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-	      MC_UNSET_RAW_MEM;
-	      
-	      MC_ddfs(search_cycle);
-	      
-	    }else{
-
-	      XBT_INFO("Next pair already visited ! ");
-
-	    }
-	  }
-	    
-
-	}else{
-	    
-	  if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
-
-	    set_pair_reached(pair_succ->automaton_state);
-	    //set_pair_reached_hash(pair_succ->automaton_state);
-	    	    
-	    search_cycle = 1;
-
-	    XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
-	    //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash));
-
-	  }
+            if(reached(pair_succ->automaton_state)){
+           
+              XBT_INFO("Next pair (depth = %d) already reached !", xbt_fifo_size(mc_stack_liveness) + 1);
+        
+              XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+              XBT_INFO("|             ACCEPTANCE CYCLE            |");
+              XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+              XBT_INFO("Counter-example that violates formula :");
+              MC_show_stack_liveness(mc_stack_liveness);
+              MC_dump_stack_liveness(mc_stack_liveness);
+              MC_print_statistics_pairs(mc_stats_pair);
+              exit(0);
+
+            }else{
+
+              XBT_INFO("Next pair (depth = %d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
+        
+              XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
+
+              MC_SET_RAW_MEM;
+              xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+              MC_UNSET_RAW_MEM;
+        
+              MC_ddfs(search_cycle);
+
+            }
+
+          }else{
+
+            MC_SET_RAW_MEM;
+            xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+            MC_UNSET_RAW_MEM;
+            
+            MC_ddfs(search_cycle);
+            
+          }
+      
 
-	  if(!visited_hash(pair_succ->automaton_state, search_cycle)){
-	    //if(!visited(pair_succ->automaton_state, search_cycle)){
+        }else{
+      
+          if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
 
-	    MC_SET_RAW_MEM;
-	    xbt_fifo_unshift(mc_stack_liveness, pair_succ);
-	    MC_UNSET_RAW_MEM;
-	    
-	    MC_ddfs(search_cycle);
-	    
-	  }else{
+            set_pair_reached(pair_succ->automaton_state);
+         
+            search_cycle = 1;
 
-	    XBT_INFO("Next pair already visited ! ");
+            XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
 
-	  }
+          }
 
-	}
+          MC_SET_RAW_MEM;
+          xbt_fifo_unshift(mc_stack_liveness, pair_succ);
+          MC_UNSET_RAW_MEM;
+          
+          MC_ddfs(search_cycle);
+          
+        }
 
-	/* Restore system before checking others successors */
-	if(cursor != xbt_dynar_length(successors) - 1)
-	  MC_replay_liveness(mc_stack_liveness, 1);
+        /* Restore system before checking others successors */
+        if(cursor != xbt_dynar_length(successors) - 1)
+          MC_replay_liveness(mc_stack_liveness, 1);
 
-	 
+   
       }
            
     }
@@ -1273,10 +637,12 @@ void MC_ddfs(int search_cycle){
   xbt_fifo_shift(mc_stack_liveness);
   if((current_pair->automaton_state->type == 1) || (current_pair->automaton_state->type == 2)){
     xbt_dynar_pop(reached_pairs, NULL);
-    //xbt_dynar_pop(reached_pairs_hash, NULL);
   }
   MC_UNSET_RAW_MEM;
-  
-  
+
+  if(raw_mem_set)
+    MC_SET_RAW_MEM;
+  else
+    MC_UNSET_RAW_MEM;
 
 }